Stenciling machine



Oct. 5, 1926. 1,601,831

' J. w. INGLESBY STENGILING MACHINE `F11ed oct. 5, 1925 4 sheets-sheet l Oct. 5 1926. 1,601,831

J. W, INGLESBY STENCILING MACHINE `Filed Oct. 5. 1925 v 4 Sheets-Sheet 2 '99 l ,f 6,5 zal F102 L WUUU i7 yl za zal rllllllllllll//ll/l/ f la Octu 5 y J. w. INGLESBY STENCILING MACHINE Filed oct. 5 l

1925 4 Sheets-Sheet 5 36 f 37 l 3J im I@ MQ J.

Oct. 5 1926. 1,601,831

' J. W. lNGL-ESBY s'rENcI-LING MACHINE Fled'Oct. 5, 1925 4 Sheets-Sheet 4 John Wlylsg dmoz-11.11%

Patented Oct. 5, 1926.

JOHN WALKER INGLESBY, OF NEWPORT NEWS, VIRGINIA..

STENCILING MACHINE. Y

Application filed October 5, 1925. Serial No. 60,548.

necting the stencil to drums forming a partV of the machine, means being employed for resetting the stencil automatically after each impression or stencil print has been made.

A further object is to provide a means for gradually retarding the relative movement of the stencil and the machine both during the resetting of the stencil, thereby to relieve the machine of the wear and tear that might result from the abrupt stopping of the movable parts.

A further object is to providev a brush for use in connection with the stencil, means being employed for rotating said brush solely during the forward movement or stenciling strokes of the machine.

A still further object is to provide a brush of the fountain type having means constantly under the control of the user whereby the flow of ink to the bristles of the brush can be regulated.

A still further object is to provide a machine of this character the parts of which can be assembled readily.

lVith the foregoing and other objects in view which will appear `as the description proceeds, the invention resides in the Combination and arrangement of parts andV in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed may be made within the scope of what is claimed without departing from the spirit of the invention.

In the accompanying drawings, the preferred form of the invention has been shown.

In said drawings,

Figure l is a vertical longitudinal section through one side portion of the housing of the machine, the interior mechanism being shown in elevation.

Figure Q is a section on line 2 2 Figure l.

Figure 3 is a section on line 3 3 Figure 1.

F igure 4 is a section on line 4*@43 Fgnre L Figure 5 is a central vertical longitudinal section thro-ugh the machine. 1

Figure 6 is a plan view.

Figure 7 kis an enlarged section on line 7-7 Figure 3.

Figure 8 is a perspective view of a portion of one of the tops of the drum, showing one of the brake or retarding members.

F igure 9 is a perspective view of the cam constituting the other brake or retarding member.

Figure 10 is a section on line 10-10 Figure 2.

Figure 11 is a section through one of the drums showing the kgripping roll in released position.

Referring to the figures by characters of reference l designates a skeleton frame which carries the mechanism of the machine. This skeleton frame includes an intermediate cross barQ and oppositely extending side arms 3 and 4L. Journaled in the front arms 3 are the reduced ends 5 of a tubular shaft 6. The skeleton Aframe 1 fits snugly within `a housing 7 and this housing is connected to the skeleton frame by a rod 8 extended longitudinally through tubular shaft 6 and through apertures in opposed sides of the housing. The rod may be held detachably Vin position by nuts 9 engaging theends thereof. Thus the tubularA shaft is held assembled with the skeleton frame and said frame is held assembled with the housing.

Mounted on the end portions of the tubular shaft 6 are the circular heads 10 and 1l of the front drum of the machine.

wardly therefrom to abut aga-inst the adjacent arm 3 and hold the heads properly spaced from the skeleton frame.

The casing of the drum is substantially cylindrical as shown at 13 and is fitted between the heads 10 and 11, there being circular depressions in the inner faces of the heads to receive the ends of the casing. The outer surface o-f the casing 13 is formed with a covering 15 of felt or the like. Located in that portion of the drum casing which is .normally lowermost, is a longitudinal depression or groove 16. Arranged within this groove is a clamping or gripping roll 17 having'alining bearing pins 18 eccentrically mounted at the Aends .thereof and journaled within the heads' 1G and 1.11 @ne Each of these heads has a boss 12 extending out n r fr O of these pins is formed with a cra-nk arm 19 whereby the roll can be rotated to move into or out of gripping position relative to the wall of the groove 16.

Arranged upon the inner surface of the head 11 is a. retarc ing cam 20 a portion of the inner or active face of which is disposed .in a plane extending obliquely across the tubular sha-ft (i. A stop lug 21 is extended inwardly from the inclined face of the cam 2O at the peak thereof, which terminates in a shoulder 20 extending theheight'of the cam. This. is clearly shown in FigureA 8^ of the drawing. u

Formed longitudinally within the'tubular shaft 6 isa groove 22 and slidably mounted on ythis grooved portion ofthe shaft'f t3 is a sleeve 23 having1 a tapered key L4 extending from` one endl thereof and' slidable" within the groove 22'. A spring 25 on the shaft G bears at one end against sleeve 23 and at its other end against a collar 26 scoured to sliaft' This srinv serves' to hold the ZD of the front drum in which this reta'rdi'ng mechanism is housed are held assembled by lon gitudinal bolts 27 engaging the heads 10 and 11 at desired intervals.

The rear drum of the machinewhich is located between the rear arms ,4; includes heads 28 and 29 mounted for rotation on a tubular shaft 30. This shaft has reduced ends 31 seated in' the. arms l and a rod 32 is extended through the shaft and through openings formed inthe housin .7 therel'iy to hold the parts assembled. The' ends f this rod are provided withl nuts or the like for holding the rod in place, Each head 28 and 29 has a laterally extending' boss designed to bear against one of the t to hold the heads properly spaced therefrom. The casing 36 of thel drum is seated in the inner faces of tae 'head and these heads and the casing are held assembled by tie rods 37. A longitudinal groove or depression isfermed in that portion o?c tl'o drum which is normally lowermost, as showi at 3S, anda felt covering 39 .is m it d on the casing 3 i clamping or gripping` roll 40 is extended longitudinally within the groove or depression '3S and has eccentrically arrangedV aligning bearing pins il lat the endsthereof jou aled withinnthc respectiveheads 28 and 29. One ot' these pinsisformed with a cra-nk arm 42 whereby the roll can be 'revolved for the purpose or movingv it intol or out offgipping pos jion.

Secured to the tubular shaft 3Q are spaced 'gear disks Lt3 between which is arranged a spiral spring 44. One end of this spring is seurcd to the tubular shaft SO as shown in Figure 5 while the other end is fastened preferably to one of the tie rods 3T. The spring is so coiled that when the drum is rotated during the forward or stenciling movement of the machine said spring will be placed under tension.

The cross ba-r 2 of the skeleton frame 1 is provided, between its ends, with a bushing 45 in which is journaled' a tubular 'shank 4G extending 'upwardly `from "the cent al portion of the top" plate 47 "of a' fountain brush, The bodyof this brush, whichis cylindrical, has been-indicated at"4l8'and is divided by a "partition i9 into u compartment or reser'voir'O and a lo or distributing compartment'l. Partition .419 -is inclined downwardly toward anjopening 52 preferably located atthecente'rtherebottom plate Sfe'rIgages the 'lower end of the body 48 and has' brush 'bristles it connected vtheretoin Aany mannerdesired and eftendingf wi'iw'arclly therefrom. Ap- .rtures 55 are formed'in"thi's'bett'om plate so that when ink is directedintoj thefdist butingc'ompartment 51 'zit 'will be free to spread therein and fiowdownwardly through 'the different apertures 55 to the bristles.

`The' partsfof the brush arelheld, assembled 'annular shoiilder 57 'constituting 'an abut! ment for 'one endo'f a 'coiledfspring 58 the other 4end of which bears against a. l evled 59. "lhis gear' is. mounted to ritate with the shank e6 but has a feathered ronnect'i'on therewith as 4shown at '50 whereby the shank is free to slide longitudinally within the gear. Said gear is'jouinaled within a bushing 61 seated Vin the top portion of the frame 1 and'insertable upwardly through an opening'tl' in the top portioaof Y the housingV 7. ri, nut 63 can eng 0'e tie `outer end portion of the bushing for ho the same assembled with the skeleton At Y, and with the housing. Obviously spring 5S exerts a constant downward thrust 2.1L

of the brush to press' firmly e f 1 stencil located the-reim`der h explained. Y l

The upper end portion the shanki-S is screw threaded erteriorly as shown at t so as to engage a' collar nwhich is adjustable longitudinally thereof by Vscrewing 4or unsrrewing the same -and isV thereafter yheid against adjustment by a set screw 66. n periphery of this collar is knurled or grooved for engagement by a spring piu 67 extendingdownwardly from the kiiurled lower eno portion 68 of a cup 69. This cup is screwed onto and carried by the eine riorly screw threaded upper end portion of a tubular spindle in threaded engagement with the inner wall of the shank 46. The lower end of the spindle is tapered to constitute a valve 71 adapted to fit snugly within and to close the opening 52 in partition 19. rThis spindle has its lower portion of less diameter than its upper or threaded portion and apertures 72 are provided within the wall of the spindle close to the threaded portion thereofI for the purpose of establishing communication between the interior of said spindle and the interior of the shank 46. Additional apertures 73 are pro.-k vided within the wall of the spindle close to the closed tapered end 71 thereof and constitute means for establishing communication between the interi r of the spindle and the reservoir 50.

The connection between the cup 69 and the spindle 70 is suliiciently tight to insure rotation of the spindle with the cup when said cup is turned by the operator. Thus the spindle can be adjusted longitudinally to open or close the aperture 52.

A cap 74 having a hollow cylindrical extension 7 5 is screwed intov the cup 69 and has a central opening 76. Thelower end of this extension 751s closed by a disl-z 7 7 provided with small apertures 78. A plunger 79 pro- 'jects through the aperture 76 and has a tapered intermediate portion S0 adapted to bear against the wall of the aperture 76 and serve as a valve for closing the aperture, A recess 81 is provided in the lower end of the plunger and seated therein is a spring 82 which bears downwardly against the dislr 77. rThis spring serves to hold the tapered portion of the plunger normally pressed yieldingly against the wall of the aperture 76. Small apertures 83 extend through the tapered portion of the plunger at points be low the points of Contact with the wall of aperture 76, these apertures 83 constituting means for setting up vcommunication between the upper end of the recess 81 and the interior of the cylindrical extension 75.

YGrooves Stare extended longitudinally within the outer surface of the plunger 79 below the tapered portion and communilcate with radial end grooves k85 in the lower end of the plunger. Thus air is at all times free to circulate through and longitudinally along the outside of that portion of the plunger housed within the extension 7 5. Normally, however, the admission of air through aperture 76 to the interior of the spindle 70 is prevented by the tapered por tion 80'of the plunger bearing against the wall of the aperture 76. Gnly when plunger 79 is depressed. will air flow into the upper end of the spindle.

A shaft 86 is journaled within the slreleton frame and extended at right angles to the shank 46. A beveled gear 87 is secured Figure 5.

to this. shaft and constantly meshes with the gear 59. A gear 88 is loosely mounted on Shaft 86 and has a ratchet face 69 normally engaged by a clutch member 90 which is rotatable with but slidable on the shaft 86. This connection between the clutch member 90 and shaft 86 is effected by the use of a pin 91 extending diametrically through the clutch member and through a slot 92 within the shaft. A spring 98 bears against one end of the clutch member so as to hold the same normally in engagement with the ratchet face 89, rThese cooperating portions are so shaped and located that when gear 88 is rotated in one direction motion will also be transmitted to the shaft 86. However, when gear 88 is rotated in the opposite direction the shaft 86 will remain stationary.

Gear S8 receives motion from a larger gear 94 journaled on one side portion of the skeleton frame and intermediate gears 95 mesh with this gear 94. One of the intermediate gears also meshes with a gear 96 secured to the head 11 of the front drum of the machine. rThe other gear 95 meshes with a gearv 97 secured to the head 29 of the rear drum.A

An arcuate guide plate 98 is secured within the front portion of the housing 7 and extends over the front drum of the machine. `A lrnob 99 may be attached to the front portion of the top of the housing and a handle or grip 100 can be connected to and eX- tended upwardly from the rear portionof the top of the housing.

For the purpose of counting the number of stenciling operations an ordinary counter indicated generally at 101 is located on the housing. kThis Icounter has the usual operating lever 102 and in the present instance this lever is engaged by the slotted end of a tripping lever 103 held normally in a prede` termined position by a spring 104. The other end of lever 103 is adapted to be engaged by one of the pins 18 once during each complete rotation of the drum carrying the same.

ln using this machine a stencil indicated generally at Sl is inserted at one end between Y the front drum and the arcuate guide 9S so as to completely Iencircle said drum. Said end of the stencil is placed within the groove 16 after which the roll 17 is rotated by means of the crank arm 19 so as to cause it to grip upon the end of the stencil as shown in then carried under the bristles of 'the' brush and inserted at its rear end in the groove 88 of the rear drum. Roll 40 is then rotated to grip said end. Cap 74- is removed from the cup G9 and a suitable free running ink or other marking fluid is poured into the cup and will flow downwardly through the spindle 70 to the openings 73 and thence into the reservoir 50. Duringl this operation airv will escapeuipwardly The. remainder of the stencil is` j for and these washers will project inwardly toward the plates 105 when the gripping rolls are in their releasing positions.

The nutor collar G constitutes a means for limiting the sliding movement of the tubular shank 4G within its supporting means. ln other words spring 58, which 'normally exerts a downward thrust upon the shoulder 57, tends to hold the nut or collar (S5 normally pressed against the bushing 6l. In use, however, the brush 51k is thrust upwardly by the pressure aga-inst the stencil but as the brush wears away the spring 58 will compensate for the wear. After a. certain amount of wear upon the brush has occurred, the nutor collar can be adjusted longitudinally along the shank 46 to allow further downward movement of the shank and brush. Thus it is possible to use the brush even though the bristles are worn down close to the plate 53. The collar or nut 65 will of course prevent excessivemovement downwardly of the brush under the action of the spring 58.

Ball bearings can be provided wherever deemed essential and in the present instance al ball bearing 109 has been shown between the bushing 60 and the gear 59.

lVhat is claimed is:

l. A stenciling machine including a portable structure, drums journaled therein for supporting the same, each drum having` a longitudinal depression, eccentrically mounted gripping means within the depressions for attaching the ends of a stencil thereto, ay horizontally movable brush within the structure and between the drums7 and drive connections between the drums and the brush, said connections including means for I noving thet brush in one direction only during the back and forth rotation of the drums. j

2. A stenciling machine including a portable structure, spaced drums journaled therein for supporting the structure, eccentrically mounted gripping means for attaching the ends of a stencil to the respective drums, a brush mounted for horizontal movement between the drums, a v'driving connection between the drums and the brush for moving the brush in one direction only during the back and forth rotation of the drums7 and yielding means within one of the drums for holding both of the drums normally in predetermined positions.

3. In a stenciling machine. a portable structure, spaced drums journaled therein for support-ing the same, a brush mounted horizontal movement between the drums7 a driving connection between the drums and the brush, means within one of the drums for normally holding the drums yieldingly in predetermined positions, and means within the other drum for automatically retarding the movement of the drums during the completion of the rotation thereof in one direction.

t. ln a stenciling machine a` portable structure, spaced drums journaled therein for supporting the saine, a brush between the drums, a driving connection between the brush and the drums, yielding means connected to one of the drums for automatically returning the drums to their normal positions and means carried by and cooperating with the other drum for automatically retarding the movement of the drums during the completion of the rotation of the drums under the action of said yielding means.

5. In a stenciling machine a portable structure, stencil carrying drums journaled therein for supporting the same, a brushmovably mounted between the drums, a driving connection between the drums and the brush, yielding means connected to one of the drums for returning the drums to their normal posit'ons after being rotated out of normal positions and released, and cooperating means carried by the other drum and adjacent said drum respectively f-or retarding the rotation of the drums during the completion of their rotation to normal position.

6. In a stenciling machine a portable structure, spaced drums mounted for rotation therein for engagement by a stencil and for supporting the structure, a brush between the drums, a driving connection between the drums and the brush, a shaft supporting one of the drums, a cam having an inclined surface and rotatable with the drum, a stop projection upon the peak portion of the cam, and spring pressed means carried by the shaft fo-r slidable engagement by the inclined face of the cam to retard the rotation of the drum Iduring the latter'r portion of the movement thereof1 in one direction. v

7. In a stenciling machine a portable structure, spaced drums mounted for rotation therein for engagement by a stencil and for supporting the structure, a brush between the drums, a driving connection between the drums and the brush, a shaft supporting one of the drums, a cam having an inclined surface and rotatable with said drum7 a stop projection upon the peak portion of the cam, and spring pressed means carried by the shaft for slidable engagement by the inclined face of the cam to retard the rotation of the drum during the latter portion of the movement thereof in one direction, there being a lost motion connection between the spring pressed means andthe shaft to permit limited rotation of the drum' subequent to engagement of the stop device with the spring pressed means.

8. In a stenciling machine a portable structure. spaced stencil engaging drums journaled therein for supporting the structure7 a brush movably mounted between the drums, a driving connection between the drums andthe brush, a reservoir and a distribnting` compartment in superposed relation within the brush, said distributing` Comator for admittingair to the reservoir and releasingl inarltingfl'luidfrom the reservoir to the distributing chamber when the valve is open.

9'. A stencilingmmachine including a portableV structure, spaced drums journaled therein forsupportinguthe structure, a brush mounted for movement between the drums, a

vdriviijig; connectionrbetween the brush and the drums, a reservoir and a distributing` chamber carried by thebrush in superposed relatiomosaid distributii'igy Chamber having outlet openings to the bristlesoic the brush,

` a valve normally closing` communication between the reservoir and' the distributingy chamber, a tilling eupI rotatable with the valve and constitutingmeans tor opening,- andclosing the valve, there being` an air passage through the cup and Avali'eiand openinginto the reservoir7 and means under the control ojtthe operator for regulating the flow of 'air 'through the, valve to the reservoir.Y

10. ln a stenciling machine the combination with a portable structure, of stencilengaging drums journaledzth'erein for support? ingmthe same abrush movably mounted between the dij-ums, a driving connection between thedrums. and the brush'7 a reservoir tor marking fluid within the brush, a distributing` chamber having outlets to the bristles oitl the brush, a valve normally closingl communication between the bottom of the reservoir anda distributing chamber,` a

lilling cup connected to and ,opening into the valve, said Cup being; located outside of the struct-ure and rotatableto open and -close the valve, Ameans for controllingjthe rotation ot" the tillingjeup, there being an an' passagev through the valve and the cup` opening into the reservoir, and means under the control ot the operator for regulatingY the flow of' air to the reservoir and consequent tlow oit,v

marking i'luid .l'rom the reservoir to the. distributingy chamber.

11; In a steneiling machine a portable structure, steneilengaging drums journaled therein tor supporting` the structure, a brush niovably mounted between the drums, a driving connection beuweenrth'e drums and the, brush, a reservoir carried by the brush, a distributingl chamber thereunder having` apertures for directing marking fluid to the bristles ot the brush, a valve eontrolled'tron'i a-point outside of the structure forl opening and'closing coimnunieation between the res? ervoir andthe distributing chamber, and means under control ofthe operator and 'out, side ot the structurefor openingland closingcommunication between the reservoir and' the external-atmosphere to control the flowol 'marking fluid from the reservoiry to-V the:- distributing chamber;

l2. In. asteneilingl machine a. portable'75" structure, stencil 'enga-ging drums journaled-i thereiny 'for supporting the same, a brush. mountedformovement between the' drums; a` drivingconnection between the drumsY and? the brush5 a normally;sealedreservoirftorS0- marlringiluid, a valvet'or eontrollinglcommunication between the bottom-.ofthe reservoir and the bristles otthebrusli, and meansLA outsine ot 'the structure and|` under-the -con= trol ofthe operator for controlling theadA- S5" mission ot air tothe reservoinand; conseL quently',v the delivery, of fluid fronrthe reser-'- voir.

13. AY stenciling machineA comprising aportable structure, drumsrotatablymounted 90 in-V thel opposite ends ot saidstructure movably supporting` the same, a rotary hori: Zontally positionedbruslrsupportedl withinthe structure lbetween said-4 drums; a reservoir carriedby` thebruslrhaving` an outlet communicable, withl the 'bristlesrth'ereo ands means connectedto-said reservoir, adapted-to permit; the lilling" of-'said reservoir andl tocontrol' and regulate the flow. et-markingiuid from the; sanieonto" said bristles,V said 100 means including' a tubular spindle normali ly opening y into the-reservoir, afvalve atlone.-l endo;t"the,spindle normally closing the out;Y let', and-f a yieldingly, hield" valve normally; closing the inlet'end-ofgthe tubularvspindl 105 said yieldingly held valve being depressible.v to admit atmospheric pressure to the spindlel and 'to the reservoir.

14; A- stencilin'g macliine comprising a: portable structure, spaceddrumsmountedini said structure. movably supporting the same, arotary horizontallypositioned brush sup-v ported within the structure between saidI` drums, a, reservoir communicable with the brush bristles having, anjairinletandl a fluid" H5 outlet, valve meanswithjin said vreservoirfor'` controlling`- and regulatingtthe' flow' of! fluid there't'ronronto said bristles, means undery the Control. of the operator for reggulatinzg'-n the admission of air to the reservoir thereby mi' to control theftl'owof liuidfrom thereservoir to the bristles' and laterally; movablemeansf for limiting the extent* off rotary" movement ot 'said drums.

15. A; steneiling machine comprising a portablestructure; drums rotatably mountedy in the f opposite ends -otsaid-*structure Ymovably supporting thesame, laterallyi movable`v means for controlli-ng the extent of rotary motion oit said drums, means-connected to one of the drums for returning the drums to their initial and normal positions, a rotary horizontally positioned brush supported within the structure between said drums, a reservoir carried by the brush communicable with the bristles thereof, and valve means for controlling and regulating the flow of marking fluid from the reservoir to said brush bristles.

16. A stenciling machine comprising a portable structure, drums rotatably mounted in the opposite ends of said struc-ture movably supporting the same, means operatively connected 'with one of said drums for limiting the extent of rotary movement of the same, other means connected to the remaining drum for causing return of the drums to their initial and normal positions upon release of their peripheral portions from pressure upon a surface, a rotary horizontally positioned brush yieldablv and slidably supported within the structure between said drums, a reservoir carried by the brush communicable with the bristlesV thereof, and manually operable valve means adapted to be operated from a point externally of the structure for controlling and regulating the flow of marking fluid from the reservoir onto said bristles.

17. A stenciling machine comprising a portable structure, drums rotatably mounted in the opposite ends thereof movably supporting the same, a rotary horizontally positioned brush supported within the structure between said drums, means connected to said drums for transmitting rotary motion to said brush in one direction, a reservoir carried by the brush communicable with the bristles thereof, and manually operable valve means adapted to be operated from a point externally of the structure for controlling and regulating the flow of marking fluid from the reservoir onto said bristles.

18. A stenciling machine comprising a portable structure, drums rotatably mounted in the opposite ends thereof movably supporting the same, means operatively connected to one of said drums for limiting the extent. of its rotary motion, other means connected to the remaining drum for causing the return of both drums to normal positions subsequently to disengagement of the same from a surface, a rotary horizontally positioned brush yieldably and slidably supported within the structure between said drums, a reservoir carried by the brush communicable with the bristles thereof, and combined filling and manually operable valve means connected to said reservoir for permitting` the filling of the reservoir with marking fluid and for controlling and regulating the flow f marking fluid from such reservoir onto said bristles.

19. A stenciling machine comprising a portable structure, drums rotatably mounted in the opposite ends of said structure movably supporting the same, a horizontally movable brush supported within the structure between said drums, a reservoir carried by the brush having an air inlet and a liuid outlet," said outlet being communicable with the bristles of the brush, and manually operable valve means for controlling the admission of air to the reservoirto displace a predetermined quantity of marking fluid from the reservoir onto said bristles.

20. A stenciling machine comprising a portable structure, drums rotatably mounted in the opposite ends of said structure movably supporting the same, a horizontally movable brush positioned within-the structure between said drums, a reservoir carried by the brush having an air inlet and a fiuid outlet, said outlet being communicable with the bristles, and means manually operable from a point exteriorly of the reservoir for controlling the admission of air to the reservoir to displace a predetermined quantity of marking uid onto said bristles.

21. A stenciling machine comprising a portable structure, drums rotatably mounted in the opposite ends of said structure movably supporting the same, a horizontally positioned movable brush within the structure between said drums, a reservoir carried by the brush having an air inlet and a fluid outlet, said outlet being communicable with the bristles thereof, a valve within said reservoir for regulating the outlet, and means, manually operable from a point eX- teriorly of the same and of said structure, for controlling the admission of air to the reservoir to displace a predetermined quantity of marking fluid from the reservoir onto said bristles.

22. A stenciling machine comprising a portable structure, drums rotatably mounted therein and movably supporting the same, a brush movable horizontally between the drums, a driving connection between the drums and the. brush, yielding means for normally pressing the brush in one direction, a reservoir communicable with the brush bristles, and valve means for controlling and regulating the flow of fluid from the reservoir to the bristles.

23. A stenciling machine comprising a portable structure, Vdrums rotatably mounted therein and movably supporting the same, a brush movable horizontally between the drum, a driving connection between the drums and the brush, yielding means for normally pressing the brush in one direction, a reservoir communicable with the brush bristles, a valve for opening and closing communication between the reservoir and the spaces between the brush bristles, and means for controlling the flow of air to the reservoir to displace fluid therein and control the flow of fluid from the reservoir.

24. A stenciling machine including a porble lstruetm'e, spaced drums mounted therein fol suppertng che mme, a yeldmgy supported brush mounted for movement between the drumis, a reservoir, means for opening and dosing commumcaon beW'sn ille resel'vor and Vthe b'stlcs the brush, means Outside of thestrucuue and unde'f the ControlV of the operaor for admitting air to and euttngt o from the reservoir, thereby to control displacementof Huid 'from the reservoir to 'the bristles, and a' housing demC- 'L y mounted on the sauctue.

'n testimony that l claim the foregoing as my Own, have he'eto a''xed my signature. Y

JGHN WALKER INGLESBY. 

